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Finding the Fourth Proportional to 108,946, 150,353.68 and 66,512.73

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Solution

The fourth proportional to 108,946, 150,353.68 and 66,512.73 is: 91,792.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,946 : 150,353.68 = 66,512.73 : x
  2. Step 2: Convert to fraction form
    108,946/150,353.68 = 66,512.73/x
  3. Step 3: Cross multiply
    108,946x = 150,353.68 × 66,512.73
  4. Step 4: Simplify right side
    108,946x = 10,000,433,722.35
  5. Step 5: Solve for x
    x = 10,000,433,722.35/108,946
  6. Step 6: Final answer
    x = 91,792.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.